Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
070034goodexcellent51excellent
060033goodexcellent41excellent
050030goodexcellent41excellent
040033goodexcellent51excellent
030035goodexcellent41excellent
020039lightly pollutedexcellent41excellent
010038lightly pollutedexcellent31excellent
000037lightly pollutedexcellent41excellent
230036goodexcellent41excellent
220038lightly pollutedexcellent51excellent
210044lightly pollutedexcellent51excellent
200043lightly pollutedexcellent51excellent
190045lightly pollutedexcellent51excellent
180045lightly pollutedexcellent51excellent
170044lightly pollutedexcellent71excellent
160045lightly pollutedexcellent61excellent
150041lightly pollutedexcellent71excellent
140034goodexcellent71excellent
130026goodexcellent61excellent
120027goodexcellent51excellent
110023goodexcellent41excellent
100023goodexcellent41excellent
090023goodexcellent41excellent
080022goodexcellent31excellent